I'm looking for advice on how to fix a yellowing leaf problem. I've seen other photos that indicate a Magnesium deficiency. But I'd love to see what you all have to say about my whole setup.
Overview of the setup
Soil: 50% Fox Farm Ocean Forest and 50% worm castings, no nutrients yet.
Light: 400W MH Agrosun bulb about 24 inches from plants
Humidity: 81%,
Temp: 79 F,
Pots: 3-gallon smart pots.
Strain: Easy Ryder plants (Low Ryder x AK 47) from Attitude
Age: About 30 days old
Light cycle: 20 hours a day
Symptoms: All three plants are starting to get yellow on almost all the leaves but only away from the veins. Yellowing began about a week ago, a few days after moving into the grow tent and also a few days after switching from distilled water to filtered tap water. Neither the temp nor humidity have changed much since moving into the tent. I've had an oscillating fan on them the whole time. But the water is probably the culprit. It seems to have a neutral pH according to several various test kits I have. Maybe there's something else in the water that messes up the plant's ability to absorb Magnesium. Since it's good quality organic soil, I doubt there is a problem with micro-nutrients not being present.
Other than switching back to distilled water, which I will do tonight, any ideas on nutrients? I'll get some photos up pronto.
Overview of the setup
Soil: 50% Fox Farm Ocean Forest and 50% worm castings, no nutrients yet.
Light: 400W MH Agrosun bulb about 24 inches from plants
Humidity: 81%,
Temp: 79 F,
Pots: 3-gallon smart pots.
Strain: Easy Ryder plants (Low Ryder x AK 47) from Attitude
Age: About 30 days old
Light cycle: 20 hours a day
Symptoms: All three plants are starting to get yellow on almost all the leaves but only away from the veins. Yellowing began about a week ago, a few days after moving into the grow tent and also a few days after switching from distilled water to filtered tap water. Neither the temp nor humidity have changed much since moving into the tent. I've had an oscillating fan on them the whole time. But the water is probably the culprit. It seems to have a neutral pH according to several various test kits I have. Maybe there's something else in the water that messes up the plant's ability to absorb Magnesium. Since it's good quality organic soil, I doubt there is a problem with micro-nutrients not being present.
Other than switching back to distilled water, which I will do tonight, any ideas on nutrients? I'll get some photos up pronto.